Classic psychedelics like LSD and psilocybin can bring repressed material into conscious awareness, catalyzing the therapeutic process.

“And we now with psychedelics, and this was what drew me into the area. Was discovering literature that was speaking to this particular action, the psychedelic action. And was saying that when these drugs-- like LSD, psilocybin found in magic mushrooms, when they're used in psychotherapy, material comes up that may be may have been repressed that is of therapeutic value and awareness and insight of this material seems to catalyze the therapeutic process with strong emotional release.”